Determination of polycyclic aromatic hydrocarbons from soil samples using selective pressurized liquid extraction

CORC > 地理科学与资源研究所 > 中国科学院地理科学与资源研究所 > 历年回溯文献

	Determination of polycyclic aromatic hydrocarbons from soil samples using selective pressurized liquid extraction
	Liang Tao; Cao Hongying; Wang Lingqing
	2012
关键词	Soil surveys Alumina Chlorine compounds Optimization Polycyclic aromatic hydrocarbons Silica gel
英文摘要	A selective pressurized liquid extraction (SPLE) method has been optimized for the determination of polycyclic aromatic hydrocarbons (PAHs) in soil samples. The method comprises a fully automated extraction and on-line clean-up procedure by inclusion of sorbents in the extraction cells. The contributing parameters of SPLE including type of solvent, static extraction time, number of extractions, extraction temperature, nature and amount of sorbents were investigated. The optimal extraction was performed at 70C for 10 min (static extraction time) cycled once using n-hexane/methylene chloride (50:50, v/v) and the sorbents in the extraction cells were 3 g of alumina and 2 g of silica gel. The collected extracts from the cells, after pre-concentration, were clean enough for direct injection into GC-MS. Validation of the SPLE technique was performed, with the recovery rates for 16 PAHs in the range of 75-103%, and the relative standard deviation (RSD) was generally less than 10%. Method detection limits (MDL) were in the ranges of 0.001-0.080 g kg-1 for the GC-MS analyses. Finally, the method was successfully used to evaluate the cultivated soils in Beijing, China. 2012 The Royal Society of Chemistry.
出处	Analytical Methods
卷	4 期:8 页:2441-2446
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27724]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Liang Tao,Cao Hongying,Wang Lingqing. Determination of polycyclic aromatic hydrocarbons from soil samples using selective pressurized liquid extraction. 2012.